TLE8262E datasheet(89/93 Pages) INFINEON

89 / 93 page

Data Sheet

Rev. 1.0, 2009-03-31

TLE8262E

Application Information

16.2

Hints for SBC Factory Flash Mode

The mode is used during production of the module to flash the µC. The idea is that the µC is not supplied from the

SBC but from an external 5V power supply. The reset of the µC that is connected to the RO pin of the SBC can

be driven from an external source and the SBC does not give a reset signal. Also no interrupt at the pin INT and

no signal on the SPI SDO pin is generated by the SBC. The SPI pins can be driven externally.

The mode is reached by applying 5V to the

CC1µC pin and no voltage to the Vs pin. The Vs pin will show a voltage

of about 4.5V because of the internal diode from

CC1µC to Vs. The current drawn at Vs must not exceed the

maximum rating of

vs,max = -500mA. The function is designed for ambient temperature.

In case the

s was supplied before going to FF Mode, the voltage on pin Vs must be set below 3 V before applying

5V to

CC1µC (discharging the C)

Figure 43

Application Hint for Factor Flash Mode

Application_FF_Mode_2.vsd

VCC1µC

VSS

VDD

CSN

CLK

SDI

SDO

µC

TxD LIN1

RxD LIN1

TxD LIN2

RxD LIN2

TxD LIN3

RxD LIN3

TxD CAN

RxD CAN

INT

CSN

CLK

SDO

SDI

TxD LIN1

RxD LIN1

TxD LIN2

RxD LIN2

TxD LIN3

RxD LIN3

TxD CAN

RxD CAN

Reset

INT

VBAT

Other

Devices

IVS

Reset

signal

Not

supplied

Not

supplied

The current

flowing to other

devices from

Vs should be

limited to not

exceed the

maximum

ratings.

Internal

supply

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